In a message dated 5/14/01 3:26:54 PM EST, tholtz@geol.umd.edu writes:
<< Please note that Olshevsky's "tyrannosauroid implosion" represents
Dinogeorge's accepting taxonomic decisions many of the rest of us agreed
upon since the late 1990s, via Thom Carr's work and others. >>
Well, most of you people still think Albertosaurus is three genera rather
than just one with three species (not a terribly big deal, but part of the
implosion nonetheless). And for some reason many of you still want to include
Tarbosaurus within Tyrannosaurus, even though there is a lot more
morphodistance between Tarbo and Tyranno than there is among the three
Alberto "genera." And why was Aublysodontidae/Shanshanosauridae still showing
as a separate group in the year 2001 at the Tom Holtz tyrannosaurid website
(part of Tree of Life)?
The more interesting paradigm shift for me presently is removing the
pterosaurs from Archosauria and reclassifying them as derived
prolacertiforms. Makes Ornithodira a very inclusive subclade of
Prolacertiformes. I think Dave Peters has nailed this one.